Hi, I'm currently struggling with a problem. I want to create a batch file that checks the file size of a file, and compares the size with the last time it was checked. If it's equal it has to do nothing, but if it's changed I would like to receive an e-mail. I'm pretty new at this stuff so I appreciate any help.

Thanks in advance

::== cheksize.bat
@echo off
setLocal EnableDelayedExpansion

for %%a in (myfile) do (
set now=%%~za
)
if not exist %temp%\# echo !now!>%temp%\# && echo no prev && goto :eof
set /p prev=<%temp%\#
if !now! equ !prev! echo still same size && goto :eof

echo here's where you send the email
echo !now!>%temp%\#
::==

=====================================
If at first you don't succeed, you're about average.

M2

here's a vbscript.
[code]
sFileName="C:\temp\monitor.txt"
cFileName="C:\temp\test.bat"
Set FSO = WScript.CreateObject("Scripting.FileSystemObject")
If FSO.FileExists(sFileName) Then
Set oTS = FSO.OpenTextFile(sFileName)
OldFileSize = oTS.ReadAll
oTS.Close
Set efile = FSO.GetFile(cFileName)
newFileSize = efile.Size
If CInt(newFileSize) <> CInt(OldFileSize) Then
WScript.Echo "email here"
WScript.Quit(1)
Else
WScript.Echo "same size"
WScript.Quit(0)
End If
Else
Set oTS = FSO.CreateTextFile(sFileName)
Set efile = FSO.GetFile(cFileName)
newFileSize = efile.Size
oTS.WriteLine(newFileSize)
oTS.Close
End If

[/code]

batch :
[code]
cscript myscript.vbs
if %errorlevel% equ 1 send email...
[/code]

This did the trick, thanks a lot!